Traduction de «bassin de décantation » (Français → Anglais) :

(Return tabled) Question No. 368 Mr. Claude Gravelle: With regard to health effects of Northern Alberta oil sands: (a) what are the cancer rates for citizens living in communities that are in close proximity to the Northern Alberta oil sands and its tailings ponds; (b) what impact does living in close proximity to the Northern Alberta oil sands and its tailings ponds have on the health of those Canadians; (c) what are the cancer rates for citizens working in the Northern Alberta oil sands; (d) what impact does working in the Northern Alberta oil sands have on the health of those citizens; (e) what are the titles of the studies or rep ...[+++]orts done by or on behalf of the government on the subject of the health effects of living in close proximity to the Northern Alberta oil sands and its tailings ponds; (f) what are the titles of the studies or reports done by or on behalf of the government that cover, in whole or in part, the subject of the effects of oil sands extraction and tailings ponds on wildlife in close proximity to the Northern Alberta oil sands and its tailings ponds; (g) what information does the government have about the risk or incidences of tailing ponds leakage into the Athabasca river; (h) how much tailing ponds leakage into the Athabasca river has been reported to the government, recorded by year; (i) what are the effects of tailing ponds leakage into the Athabasca river on communities downstream; (j) what are the effects of tailing ponds leakage into the Athabasca river on fish in the river and surrounding wildlife; (k) what steps has the government taken to ensure tailing ponds leakage into the Athabasca river has been mitigated; (l) for those living in close proximity of the Northern Alberta oil sands, what is the anticipated impact of future developments on (i) health, (ii) economic development, (iii) environment, (iv) water supplies, (v) the Athabasca River, (vi) infrastructure; and (m) what are the titles of the studies or reports done ...

The salt worker simultaneously manages the level of the water and its circulation in the different pools to allow a progressive increase in the concentration of salt over several weeks (keeping a concentration in the salt marsh very close to the point of crystallisation), as well as the natural purification of the waters through decanting, and finally the harvest of the products.

"(g) waste land-fill sites, with the exception of operational tailings disposal facilities, including tailing ponds or dams, containing dangerous substances as defined in Annex I, in particular when used in connection with the chemical and thermal processing of minerals".

(3) The cyanide spill that polluted the Danube following the accident at Baia Mare in Romania in January 2000 has demonstrated that certain storage and processing activities in mining, especially tailings disposal facilities, including tailing ponds or dams, have potential to produce very serious consequences.

Solids are then settled into large settling ponds.

Overburden dumps, spoil heaps and other tips, as well as settling lagoons, must be designed, constructed, operated and maintained in such a way as to ensure their stability, as well as the safety and health of workers.